If by referring to a hidden agenda, the noble Lord is suggesting that I have some motivation, I assure him that my only motivation is to ensure that Parliament has a guaranteed opportunity at the end of the negotiating process to decide whether the terms of our withdrawal are acceptable or not. That is a basic question of parliamentary sovereignty.
The amendment will not delay notification of withdrawal from the EU. It does not commit the Government to adopt any specific approach in the negotiations. It does not impede them in the negotiations any more than the undertaking already given by the Prime Minister. Crucially, it will guarantee that the Government must come back to both Houses to seek approval for the result of the negotiations.